National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast and Breezy

55°F

13°C

Humidity 83%
Wind Speed SW 21 G 35 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 13 Apr 12:56 pm EDT
Extended Forecast for

South Dennis MA

  • This Afternoon

    This Afternoon: A slight chance of showers. Areas of fog after 5pm. Otherwise, cloudy, with a high near 60. Breezy, with a southwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 60 °F

    Slight Chance
    Showers and
    Areas Fog

  • Tonight

    Tonight: Areas of fog before 9pm, then areas of fog after midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 49. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 49 °F

    Areas Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. West wind 7 to 10 mph becoming south in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind 13 to 17 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. Northwest wind 7 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly between 9pm and 2am. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 58. Southwest wind 5 to 8 mph becoming southeast in the morning.

    High: 58 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48. Southwest wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61. Southwest wind 6 to 8 mph.

    High: 61 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Areas of fog after 5pm. Otherwise, cloudy, with a high near 60. Breezy, with a southwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Tonight
Areas of fog before 9pm, then areas of fog after midnight. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 49. Southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 64. West wind 7 to 10 mph becoming south in the afternoon.
Tuesday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. Southwest wind 13 to 17 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 63. Northwest wind 7 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A chance of showers, mainly between 9pm and 2am. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 58. Southwest wind 5 to 8 mph becoming southeast in the morning.
Thursday Night
Mostly cloudy, with a low around 48. Southwest wind around 6 mph.
Friday
Partly sunny, with a high near 61. Southwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 45. Southwest wind around 5 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 54. Northeast wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 45. South wind around 5 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 59. South wind 7 to 9 mph. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
4:55 am EDT Apr 13, 2026
Forecast Valid:
12pm EDT Apr 13, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation